American Electroplaters' Society 70th Annual Technical Conference. Proceedings of the 24th annual technical conference. Proceedings of the 26th annual technical conference. Society of Plastics Engineers 34th annual technical conference. Society of Plastics Engineers 35th annual technical conference. Society of Plastics Engineers 37th annual technical conference. Proceedings of the twenty-sixth annual technical conference Society of Plastics Engineers 31st annual technical conference. Society of Plastics Engineers 32th annual technical conference : Society of Plastics Engineers 33rd annual technical conference.