Modification or Amendments. No amendment, change or modification of this document shall be valid unless in writing and signed by all of the parties hereto.
Appears in 3 contracts
Sources: Public Relations Service Agreement, Employment Agreement (Pollution Research & Control Corp /Ca/), Employment Agreement (Pollution Research & Control Corp /Ca/)
Modification or Amendments. No amendment, change or modification of this document shall be valid unless in writing and signed by all both of the parties hereto.
Appears in 1 contract
Sources: Auctioneer's Services Agreement