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GB633626A
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Improvements in or relating to sealing means for relatively movable members
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US2413769A
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Filter
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US2380111A
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Helically wound body
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US2382278A
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Filter
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US2421705A
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Filter
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US2421704A
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Filter pack and its manufacture
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US2354395A
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Filter element
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US2395997A
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Air-inlet scoop for carburetors
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US2333609A
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Cleanable multiple filter
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US2327648A
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Filter pack
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US2354380A
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Filter
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US2375246A
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Filter packs and methods of manufacture
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US1754791A
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Internal-combustion engine
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US1722132A
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Piston construction
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US1754787A
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Sliding valve construction for internal-combustion engines
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US1731618A
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Cooling system for internal-combustion engines
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US1804844A
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Oil-rectifying system for internal-combustion engines
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US1724193A
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Mounting for internal-combustion-engine pistons
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US1779968A
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Cooling means for internal-combustion engines
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US1785861A
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Air-cooled internal-combustion engine
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