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CA133312A
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Machine slitting and flanging metal bars
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US1025424A
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Corner-protector.
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US1038195A
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Corner-protector.
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US955431A
|
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Machine for slitting and flanging metal bars.
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US944502A
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Fireproof construction.
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US960197A
|
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Fireproof construction.
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CA111039A
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Reinforcing bar for concrete structures
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GB190722116A
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Improvements in and relating to Devices for Reinforcing Concrete Structures.
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CA108984A
|
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Fireproof partition, etc.
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GB190715896A
|
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Improvements in Fireproof Partitions, Ceilings and the like.
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US870129A
|
|
Reinforcing-bar for concrete structures.
|
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US860884A
|
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Fireproof partition and furring.
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US826746A
|
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Hatch door and gutter.
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