diff --git a/jmclient/jmclient/maker.py b/jmclient/jmclient/maker.py
index bf1b858..56afcbc 100644
--- a/jmclient/jmclient/maker.py
+++ b/jmclient/jmclient/maker.py
@@ -4,6 +4,7 @@ from __future__ import print_function
 import base64
 import pprint
 import sys
+import abc
 from binascii import unhexlify
 
 import btc
@@ -234,3 +235,29 @@ class Maker(object):
             return
         assert hasattr(bci, 'get_wallet_name')
         bci.import_addresses(addr_list, bci.get_wallet_name(self.wallet))
+
+    @abc.abstractmethod
+    def create_my_orders(self):
+        """Must generate a set of orders to be displayed
+        according to the contents of the wallet + some algo.
+        (Note: should be called "create_my_offers")
+        """
+
+    @abc.abstractmethod
+    def oid_to_order(self, cjorder, oid, amount):
+        """Must convert an order with an offer/order id
+        into a set of utxos to fill the order.
+        Also provides the output addresses for the Taker.
+        """
+
+    @abc.abstractmethod
+    def on_tx_unconfirmed(self, cjorder, txid, removed_utxos):
+        """Performs action on receipt of transaction into the
+        mempool in the blockchain instance (e.g. announcing orders)
+        """
+
+    @abc.abstractmethod
+    def on_tx_confirmed(self, cjorder, confirmations, txid):
+        """Performs actions on receipt of 1st confirmation of
+        a transaction into a block (e.g. announce orders)
+        """
diff --git a/jmclient/jmclient/yieldgenerator.py b/jmclient/jmclient/yieldgenerator.py
index d325223..ca6cb54 100644
--- a/jmclient/jmclient/yieldgenerator.py
+++ b/jmclient/jmclient/yieldgenerator.py
@@ -41,31 +41,6 @@ class YieldGenerator(Maker):
         self.income_statement.write(','.join(data) + '\n')
         self.income_statement.close()
 
-    @abc.abstractmethod
-    def create_my_orders(self):
-        """Must generate a set of orders to be displayed
-        according to the contents of the wallet + some algo.
-        (Note: should be called "create_my_offers")
-        """
-
-    @abc.abstractmethod
-    def oid_to_order(self, cjorder, oid, amount):
-        """Must convert an order with an offer/order id
-        into a set of utxos to fill the order.
-        Also provides the output addresses for the Taker.
-        """
-
-    @abc.abstractmethod
-    def on_tx_unconfirmed(self, cjorder, txid, removed_utxos):
-        """Performs action on receipt of transaction into the
-        mempool in the blockchain instance (e.g. announcing orders)
-        """
-
-    @abc.abstractmethod
-    def on_tx_confirmed(self, cjorder, confirmations, txid):
-        """Performs actions on receipt of 1st confirmation of
-        a transaction into a block (e.g. announce orders)
-        """
 
 class YieldGeneratorBasic(YieldGenerator):
     """A simplest possible instantiation of a yieldgenerator.