Educational chromatograph

Details Educational chromatograph Educational chromatograph

1974-09-13

1977-03-08

Feifer, Melvin B.

Office supplies; artists and teachers materials

Teaching material

Demonstrator or exhibitor

D1907

Patent

active

D02436035

REFERENCES:
chromatography, Schaar & Co., Cat. AC-56, p. 18, upper right illustration.
Scientific Products, 1961, p. 304, item c5050.

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