Lynn Powis trades
| Kansas City Scouts acquire | Date | St. Louis Blues acquire | ||
|---|---|---|---|---|
 | Denis Dupere | June 18, 1975 | Lynn Powis |  |
| Craig Patrick | 1976 2nd round pick (#20-Brian Sutter) | |||
| cash | ||||
| Atlanta Flames acquire | Date | Chicago Blackhawks acquire | ||
|---|---|---|---|---|
 | Mike Baumgartner | August 30, 1973 | Lynn Powis |  |
| Montreal Canadiens acquire | Date | Atlanta Flames acquire | ||
|---|---|---|---|---|
 | 1973 2nd round pick (#21-Eric Vail) | June 16, 1972 | Rey Comeau | |
| cash | Lynn Powis | |||
| Montreal Canadiens acquire | Date | Atlanta Flames acquire | ||
|---|---|---|---|---|
| cash | June 9, 1972 | Lynn Powis | |