Educational chromatograph
Description
FIG. 1 is a perspective view showing the educational chromatography according to my design.
FIG. 2 is a view in rear elevation.
FIG. 3 is a view in right side elevation.
FIG. 4 is a view in left side elevation.
Referenced Cited
Other references
- chromatography, Schaar & Co., Cat. AC-56, p. 18, upper right illustration. Scientific Products, 1961, p. 304, item c5050.
Patent History
Patent number: D243603
Type: Grant
Filed: Sep 13, 1974
Date of Patent: Mar 8, 1977
Inventor: John P. Salsgiver (Acton, MA)
Primary Examiner: Melvin B. Feifer
Attorney: John P. Salsgiver
Application Number: 5/505,856
Type: Grant
Filed: Sep 13, 1974
Date of Patent: Mar 8, 1977
Inventor: John P. Salsgiver (Acton, MA)
Primary Examiner: Melvin B. Feifer
Attorney: John P. Salsgiver
Application Number: 5/505,856
Classifications
