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Old 06-21-2018, 11:03 AM
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cjr
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Join Date: Jul 2010
Location: Las Vegas NV
Posts: 1,250
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Do not know what those are, --- I have a 778, purchased brand new in 1976. Gets very heavy use, my primary sewing machine. It is a work horse. 3 things - Do not over wind bobbin, keep bobbin area free of lint & oil frequently.
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