1974-11-01
1978-05-02
Henry, Jon W.
G02B 2134
Patent
active
040871541
ABSTRACT:
A glass slide which has a matted area. This matted area is formed by a ground surface area of the slide, and this matted area as well as the remainder of the slide are perfectly free of any particles of glass. The matted area extends between an end edge of the slide and an edge which is perfectly parallel with the end edge.
REFERENCES:
patent: 431132 (1890-07-01), Wharton
patent: 1693961 (1928-12-01), Risch
patent: 1983626 (1934-12-01), Lytle
patent: 1996141 (1935-04-01), Broadhurst et al.
patent: 2041290 (1936-05-01), Jackson
patent: 2801568 (1957-08-01), Dakin
patent: 3481659 (1969-12-01), Rosenberg
patent: 3636663 (1972-01-01), Menzel
Henry Jon W.
Propper Manufacturing Co. Inc.
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