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US2817130A
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Hose clamp
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US2779976A
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Method of making hose
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US2891581A
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Flexible hose and method of making the same
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US2509882A
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Method and apparatus for vulcanizing hollow rubber articles
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US2519069A
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Method of making reinforced balls
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US2560370A
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Apparatus for applying covers to balls
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US2524680A
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Method and apparatus for covering balls
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US2483234A
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Method of making hollow rubber articles
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US2463562A
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Method and apparatus for making hollow rubber articles
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US2505430A
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Method of covering balls
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US2430081A
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Method of making flexible tubes
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US2396059A
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Flexible tube
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US1889904A
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Method of making inner tubes and air bags
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US1503666A
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Mold for making hollow articles of plastic material
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US1494709A
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Machine for inflating hollow rubber articles
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US1433971A
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Method of and apparatus for preventing air bubbles in laminated rubber articles
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US1560862A
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Method of making variegated rubber
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US1503665A
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Method of and apparatus for making annular sheets of rubber
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US1329312A
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Mold for making rubber articles
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