History of NHL trades
| California Golden Seals (Oakland) acquire | Date | Minnesota North Stars acquire | ||||
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May 20, 1971 |
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| St. Louis Blues acquire | Date | Detroit Red Wings acquire | ||||
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May 12, 1971 |
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| Los Angeles Kings acquire | Date | New York Rangers acquire | ||||
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May 1, 1971 |
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| Montreal Canadiens acquire | Date | Minnesota North Stars acquire | ||||
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May 1, 1971 |
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| Boston Bruins acquire | Date | Pittsburgh Penguins acquire | ||||
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May 1, 1971 |
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