 | United States. Patent Office - 1907 - 132 σελίδες
...(3) All drawings must be made with the pen only. coiohra^ntaesand Every line and letter (signatures included) must be absolutely black. This direction...shading should be made by oblique parallel lines, which may be about one-twentieth of an inch apart. Solid black should not be used for • sectional... | |
 | United States. Patent Office - 1888 - 132 σελίδες
...pen onlv. character and * ' ' J color of lines. iitue'orlino8siuKi! *"*• drawLetters of refsenting cut surfaces in sectional views. All lines must be...shading should be made by oblique parallel lines, which may be about one-twentieth of an inch apart. (*) Drawings should be made with the fewest lines... | |
 | United States. Patent Office - 1955 - 172 σελίδες
...process which will give them satisfactory reproduction characteristics. Every line and letter (signatures included) must be absolutely black. This direction...views. All lines must be clean, sharp, and solid, and fine or crowded lines should be avoided. Solid black should not be used for sectional or surface shading.... | |
 | United States. Patent Office - 1963 - 144 σελίδες
...Every line and letter must be black. This direction applies to all lines, however fine, and to shading. All lines must be clean, sharp, and solid, and they must not ba too fine or crowded. Surface Shading, when used, should be open. The requirements of this paragraph... | |
 | Henry A. Gaston - 1880 - 336 σελίδες
...drawings must be made with the pen only, using the blackest Indian ink. Every line and letter (signatures included) must be absolutely black. This direction...or crowded. Surface shading, when used, should be left very open. Sectional shading should be by oblique parallel lines, which may be about one twentieth... | |
 | Orlando Bump - 1884 - 912 σελίδες
...number, and date. (3.) All drawings must be made with the pen only. Every line and letter (signatures included) must be absolutely black. This direction...shading should be made by oblique parallel lines, which may be about onetwentieth of an inch apart. (4.) Drawings should be made with the fewest lines... | |
 | W. E. Stipp - 1894 - 216 σελίδες
...Letter of reference. 3. All drawings must be made with the pen only. Every line and letter (signatures included) must be absolutely black. This direction...shading should be made by oblique parallel lines, which may be about one twentieth of an inch apart. 4. Drawings should be made with the fewest lines... | |
 | Great Britain. Parliament. House of Commons - 1900 - 750 σελίδες
...pp. 288 and 289.) (3.) All drawings must be made with the pen only. Every line and letter, signatures included, must be absolutely black. This direction applies to all lines, however fine, and to shading. Al! lines must be clean, sharp, and solid, and they must not be too fine or crowded.... | |
 | Clarence Edwin Coolidge - 1902 - 220 σελίδες
...name, number, and date. All drawings must be made with the pen only. Every line and letter (signatures included) must be absolutely black. This direction...shading should be made by oblique parallel lines, which may be about one twentieth of an inch apart. Solid black should not be used for sectional or... | |
 | Bruce Wyman - 1903 - 660 σελίδες
...number, and date. (3) All drawings must be made with the pen only. Every line and letter (signatures included) must be absolutely black. This direction...shading should be made by oblique parallel lines, which may be about one-twentieth of an inch apart. Solid black should not be used for sectional or... | |
| |
Every line and letter (signatures included) must be absolutely black. This direction applies to all lines, however fine, to shading, and to lines representing cut surfaces in sectional views. All lines must be clean, sharp, and solid, and they must not... 
