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Edric Ellis
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Ormskirk, EN
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last 30 patents
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Patent Grant
Photochromic glasses
Patent number
4,092,174
Issue date
May 30, 1978
Pilkington Brothers Limited
Edric Ellis
C03 - GLASS MINERAL OR SLAG WOOL
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Patent Grant
Photochromic alumino-phosphate glasses
Patent number
4,088,501
Issue date
May 9, 1978
Pilkington Brothers Limited
Edric Ellis
C03 - GLASS MINERAL OR SLAG WOOL