“MASTER”
2″ High. Steel body. Steel shackle.Patent #1718606. US Patent #1490987.
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“ST
CHRISTOPHER PROTECT US”. Steel body. Steel shackle. Bicycle lock.
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“MASTER
…”. Steel body. Laminated steel shackle. Adjustable shackle.Patent #2471291.
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“MASTER
…”. Steel construction. Pin Tumbler. Original key. Trailer hitch lock.
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“MASTER”
1 11/16″ wide. Brass body. Steel shackle.Patent #1938941. US Patent #2136435.
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“MASTER”
2″ wide. Steel body. Steel shackle.Patent #1994928.
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“MASTER”
Plastic body. Steel shackle.Patent #D512900. US Patent #D517396.
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“MASTER EX SERIES”
Steel body. Steel shackle.Patent #D406043.
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“MASTER LOCK TITANIUM
..”. Steel body. Steel shackle.Patent #D423907.
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“MASTER ProSeries 6621”
Steel body. Steel shackle.Patent #D342010.