Sun glass lenses made of ground and polished plate glass thereafter thermally curved
1920 ◽
Vol 1
(1supp)
◽
pp. 23-23
◽
1987 ◽
Vol 20
(4)
◽
pp. 155-156
1991 ◽
Vol 49
◽
pp. 962-963
1887 ◽
Vol 3
(2build)
◽
pp. 27-27
Keyword(s):
Keyword(s):
1863 ◽
Vol 14
(1)
◽
pp. 209-224
Keyword(s):
Keyword(s):
1962 ◽
Vol 39
(1)
◽
pp. 33-35
◽
Keyword(s):