Stock material or miscellaneous articles – Composite – Of bituminous or tarry residue
Patent
1984-03-19
1985-12-03
Henry, Jon W.
Stock material or miscellaneous articles
Composite
Of bituminous or tarry residue
4289122, 428938, 428636, 428654, G02B 508, G02B 718
Patent
active
045562857
ABSTRACT:
In making reflection mirrors for optics, a technique is provided for making up a reflection mirror not of a glass-system material but of metallic material, and a method for high-precision mirror-machining of a metal plate is also disclosed.
REFERENCES:
patent: 2058429 (1936-10-01), Edwards
patent: 3063138 (1962-11-01), Vandenburgh
patent: 3173801 (1965-03-01), Lipkis et al.
patent: 4202615 (1980-05-01), Nemoto
patent: 4358507 (1982-11-01), Senaha et al.
Nakasugi Mikio
Nishida Keijiro
Saito Norihisa
Shirai Naoki
Sugiura Yoji
Canon Kabushiki Kaisha
Henry Jon W.
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