in chains (in_chains.mod)

pat#00 by js 200292
pat#01 by u4ia 23 feb
pat#02 by js 020392
pat#03 by u4ia 6 mar
pat#04 by js 250392
pat#05 by js 250392
pat #6+7 by u4ia
pats 8-9 by js
10&12 by js and u4ia
11 & 13-18 by u4ia
19-24 by js 090592
25-27 u4ia 20.5.92
pat #29 by u4ia & js
28, 30-32 by js 26.5.
33-37 u4ia 27.6.92
#38 by js 080293(!)
39-40 by u4ia 14:3:93
41 by u4ia & js
21,22&42 by js 020493
43-45 by u4ia 30.5.93
#46 by js 271194(!!!)
(c) js & u4ia 92-94