Your search Curtis M. Harris et al., Plaintiffs-appellants, v. Chemical Leaman Tank Lines, Inc., Defendant-appellee.no. 30532 Summary Calendar.**rule 18, 5th Cir.; See Isbell Enterprises, Inc v. Citizens Casualty Company of New York et al., 5th Cir.,1970, 431 F.2d 409, Part I did not match any document.