Physico-chemical studies of rubber
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Article
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1910
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Elsevier Science
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English
⚖ 64 KB
## 435 team work and all of its multudinous aids to. rapid and perfect production was undreamed of. All the foregoing that relates to impro.vements in bank vaults applies with equal force to burglar-proof safes. The same highgrade materials are used and the same careful methods applied in the con